Rainbow Triumph

Briony was diagnosed with a degenerative bone disease that would have been terminal, but as the daughter to one of the top executives for a company called Gentech - who specialize in genetics - she was given an experimental procedure that saved her life.

Over time, Briony was given an increasing number of implants as Gentech's technology advanced until the marketing department got hold of her at the age of eleven and began grooming her for a superhero career.

Briony was re-marketed as the superhero Rainbow Triumph, her young age making her a natural media darling with a lot of PR, her own agent and corporate backing - one of the reasons she was chosen for the New Champions, although as a minor she was assigned to Blackwolf as a sidekick.

Superhuman Powers
Superhuman Strength 

Rainbow Triumph has strength on the superhuman scale, able to pick up adults far larger than her with one hand; she can hit hard enough to damage Doctor Impossible, who has skin so tough that it's buletproof.

Superhuman Speed

Rainbow Triumph has a superhuman level of speed and can move so fast she becomes a blur.

Weapons
Rainbow Triumph's gloves have fins with razor edges; it is also stated that she has concealed gadgetry, although what this includes is unknown.